JPH11348764A - Method of and device for supplying pressure medium to air pressure regulating member of auxiliary aggregate to be switched in automobile - Google Patents

Method of and device for supplying pressure medium to air pressure regulating member of auxiliary aggregate to be switched in automobile

Info

Publication number
JPH11348764A
JPH11348764A JP6527299A JP6527299A JPH11348764A JP H11348764 A JPH11348764 A JP H11348764A JP 6527299 A JP6527299 A JP 6527299A JP 6527299 A JP6527299 A JP 6527299A JP H11348764 A JPH11348764 A JP H11348764A
Authority
JP
Japan
Prior art keywords
pressure
compressed air
air
pressure medium
medium supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP6527299A
Other languages
Japanese (ja)
Inventor
Hans-Peter Krauss
ハンス・ペーター・クラウス
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental AG
Original Assignee
Continental AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental AG filed Critical Continental AG
Publication of JPH11348764A publication Critical patent/JPH11348764A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/0408Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics details, e.g. antifreeze for suspension fluid, pumps, retarding means per se
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0152Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0155Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052Pneumatic spring characteristics
    • B60G17/0523Regulating distributors or valves for pneumatic springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10Type of spring
    • B60G2202/15Fluid spring
    • B60G2202/152Pneumatic spring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10Type of spring
    • B60G2202/15Fluid spring
    • B60G2202/154Fluid spring with an accumulator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00Indexing codes relating to the regulated action or device
    • B60G2500/20Spring action or springs
    • B60G2500/202Height or leveling valve for air-springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00Indexing codes relating to the regulated action or device
    • B60G2500/20Spring action or springs
    • B60G2500/204Pressure regulating valves for air-springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00Indexing codes relating to the regulated action or device
    • B60G2500/30Height or ground clearance

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PROBLEM TO BE SOLVED: To simplify a pressure medium supply part by using a pressure medium supply source of a level adjuster as a pressure source. SOLUTION: An air spring 2 receives supply of compressed air from an air supply aggregate (pressure medium source) 8 through a solenoid valve 12 and a compressed air flow pipe 14 in order to fixedly hold a space between a car body 4 and an axle 6 of an automobile. An electronic control device 10 of a level adjuster controls the solenoid valve 12 through a signal conductor 16 suitably to a height position signal from the level adjuster 18, to hold an adjusted condition at a preset value by considering charging or discharging of air. A pressure of the air spring 2 is introduced to the compressed air flow pipe 14 of the level adjuster, branch pipe 20, other solenoid valve 22 controlled by an electronic control device 24 of a transmission device 26 as necessary, and an air pressure adjusting member 30 switching the transmission device 26 via a compressed air flow pipe 28. In this way, compressed air can be diverted for a short period without an additional air supply unit or an accumulator, and utilization of a pressure medium supply source can be simplified.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、それぞれ空気圧調
整部材を有する、例えば中央インタロック装置、サーボ
ステアリング等のような自動車における種々雑多の補助
集合体に関するものであり、そのためにそれぞれ1つの
圧力媒体供給源が必要とされる。本発明は、特に前記補
助集合体の空気圧調整部材への圧力媒体供給のための方
法及びその装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various auxiliary assemblies in motor vehicles, such as, for example, central interlocks, servo steerings, etc., each having a pneumatic pressure adjusting member, for which one pressure medium is provided. A source is needed. The invention relates in particular to a method and a device for supplying a pressure medium to a pneumatic pressure adjusting member of the auxiliary assembly.

【0002】[0002]

【従来の技術】通常、中央インタロック装置等のよう
な、通常そのように空気圧により支持された補助集合体
は、それぞれ1つの固有の圧力媒体源を備える。即ち、
切換えは、付加的に組み込まれた空気圧供給ユニットか
らのエネルギーによって又は電気的に行われる。このこ
とは、比較的コストがかかり従って高価である。
2. Description of the Related Art Usually, such pneumatically supported auxiliary assemblies, such as central interlocking devices or the like, each have a unique source of pressure medium. That is,
The switching is effected by energy from an additionally integrated pneumatic supply unit or electrically. This is relatively costly and therefore expensive.

【0003】[0003]

【発明が解決しようとする課題】本発明の課題は、その
ようにコストのかかる圧力媒体供給部を簡単化すること
にある。成程、空気圧による切換え過程は、圧縮空気供
給のための追加の構成部品の使用又はその調整の必要な
しに可能にされる。
SUMMARY OF THE INVENTION It is an object of the present invention to simplify such a costly pressure medium supply. As a result, the pneumatic switching process is made possible without the use of additional components for the compressed air supply or the need to adjust them.

【0004】[0004]

【課題を解決するための手段】空気ばねを備えた自動車
では、この課題は、請求項1 に記載のレベル調整装置の
圧力媒体供給源を圧力源として使用することによって解
決される。有利な詳細及び他の構成は、従属請求項に記
載されている。
In a motor vehicle with an air spring, this object is achieved by using the pressure medium supply of the leveling device according to claim 1 as a pressure source. Advantageous details and other features are set out in the dependent claims.

【0005】本発明の請求項1に記載の解決から、本発
明が、空気ばね上に支持されたレベル調整装置を備えた
自動車でのみ使用可能であることは明らかである。
It is clear from the solution according to claim 1 of the invention that the invention can only be used in motor vehicles with a level adjustment device supported on an air spring.

【0006】種々の実施形態について公知である空気ば
ねでは、圧縮空気の充填又は排出によって車体と自動車
の車軸との間の距離が、特定された調整状態に一定に保
持される。
In the air springs known for the various embodiments, the distance between the vehicle body and the axle of the motor vehicle is kept constant in a specified adjustment by filling or discharging compressed air.

【0007】エアサスペンションに存在する圧縮空気
は、本発明によれば、自動車にある補助集合体の種々雑
多な空気圧調整部材への圧力付勢のために利用される。
[0007] The compressed air present in the air suspension is used, according to the invention, to bias the miscellaneous air pressure regulating members of the auxiliary assembly in the motor vehicle.

【0008】このために、切換え媒体(圧縮空気)は、
既存のレベル調整装置から直接空気ばねから又はその供
給導管から分岐して供給される。再充填は、レベル調整
装置の調整によって間接的に制御され、その結果このた
めに別個の蓄圧器も空気供給集合体又は電子調整装置も
必要とされない。
To this end, the switching medium (compressed air)
It is supplied directly from existing leveling devices from the air spring or from its supply conduit. Recharging is controlled indirectly by adjustment of the leveling device, so that no separate accumulator or air supply assembly or electronic regulator is required for this.

【0009】本発明の一般的な利点は、追加の構成部材
なしに圧力供給のための非常にコストの安い可能性が創
造され、例えば連動伝動装置、中央インタロック装置、
ブレーキ増幅器等のような種々の要素を空気圧により切
り換えるという可能性が創造されることにある。
A general advantage of the invention is that a very low cost possibility for pressure supply is created without additional components, such as interlocking transmissions, central interlocks,
The possibility is created to switch various elements, such as brake amplifiers, by air pressure.

【0010】空気ばねの圧力媒体供給源を、本発明によ
り自動車の種々雑多の補助集合体のための供給源として
使用することによって、追加の空気供給ユニット又は追
加の蓄圧器なしに圧縮空気の短期間の転用可能性が与え
られる。圧縮空気の準備のための追加の調整は必要な
い。自動車空気ばねの圧力媒体供給源の本発明による新
たな用途への適用は、僅かなコストの安い構成部品によ
って行われる。
By using the pressure medium supply of the air spring as a supply for the miscellaneous auxiliary assembly of the motor vehicle according to the invention, the short-term supply of compressed air without an additional air supply unit or an additional accumulator is achieved. The possibility of diversion is given. No additional adjustments are required for the preparation of the compressed air. The application of the pressure medium supply of the motor vehicle air spring to the new application according to the invention is effected by means of a few low-cost components.

【0011】圧縮空気のレベル調整装置から取り出し可
能な量の制限によって、空気ばねの運転のための十分な
圧縮空気が常に確保される。
[0011] By limiting the amount of compressed air that can be withdrawn from the leveling device, sufficient compressed air is always ensured for operation of the air spring.

【0012】補助集合体のために設けられている空気圧
調整部材は、空気圧調整部材が空気ばね中に生じる空気
圧(最小から最大空気圧まで)に好適であるように選択
されている。
[0012] The air pressure adjusting element provided for the auxiliary assembly is selected such that the air pressure adjusting element is suitable for the air pressure (minimum to maximum air pressure) occurring in the air spring.

【0013】ばねの運動から生じ、空気導管を介して補
助集合体の空気圧調整部材にも伝達される圧力変動は、
絞りの組み込みによって減少されることができる。
[0013] The pressure fluctuations resulting from the movement of the spring and also transmitted via the air conduit to the pneumatic adjustment member of the auxiliary assembly are:
It can be reduced by incorporating a diaphragm.

【0014】本発明を図示の実施例に基づいて記載す
る。図1は、空気ばねを備えた自動車を断面で示す原理
図である。
The present invention will be described based on the illustrated embodiment. FIG. 1 is a principle view showing, in cross section, an automobile provided with an air spring.

【0015】[0015]

【実施例】記載のように、空気ばね2は、自動車の車体
4と車軸6との間隔を一定に保持すべきである。このた
めに圧縮空気は、空気供給集合体(圧力媒体源)8から
圧縮空気を準備されかつレベル調整装置の電子制御部1
0によって制御されるべき電磁弁12と圧縮空気導管1
4とを介して空気ばね2に供給される。
DESCRIPTION OF THE PREFERRED EMBODIMENTS As mentioned, the air spring 2 should keep the distance between the vehicle body 4 and the axle 6 constant. For this purpose, compressed air is supplied from the air supply assembly (pressure medium source) 8 and is supplied to the electronic control unit 1 of the level control device.
Solenoid valve 12 and compressed air conduit 1 to be controlled by
4 to the air spring 2.

【0016】レベル調整装置の電子制御装置10は、信
号導線16を介して電磁弁12をレベルセンサ(レベル
調整装置)18からの高さ位置信号に相応して制御しか
つ、空気が充填され又は排出されることを考慮してお
り、その結果自動車の調整状態は、予め設定された値と
等しく一定に保持される(又は変えられ得る)。−この
ことは新規ではない。
The electronic control unit 10 of the level control device controls the solenoid valve 12 via a signal line 16 in response to a height position signal from a level sensor (level control device) 18 and is filled with air or In view of the emissions, the adjustment state of the vehicle is kept constant (or can be changed) equal to a preset value. -This is not new.

【0017】本発明によれば常に圧力下にあるレベル調
整装置の圧縮空気導管14から(又は直接空気ばね2か
ら出発して)、分岐管20と、必要に応じて伝動装置2
6の電子制御装置24によって制御される他の電磁弁2
2とを介してかつ他の圧縮空気導管28を介して、圧縮
空気が、伝動装置26を切り換える空気圧調整部材30
に導入される。
According to the invention, from the compressed air line 14 of the leveling device, which is always under pressure (or starting directly from the air spring 2), the branch line 20 and, if necessary, the transmission 2
6. Other solenoid valves 2 controlled by the electronic control unit 24
2, and via another compressed air conduit 28, compressed air is supplied to the air pressure regulating member 30 for switching the transmission 26.
Will be introduced.

【0018】同様なことが、空気圧調整部材34、電磁
弁36、分岐管38、圧縮空気導管40及び切換えられ
るべきユニット32の電子制御装置42のような所属の
構成部分を備えた例えば中央インタロック装置のような
他の切換えられるべきユニット32に通じる。
The same applies, for example, to a central interlock with associated components such as a pneumatic pressure regulating member 34, a solenoid valve 36, a branch line 38, a compressed air conduit 40 and an electronic control unit 42 of the unit 32 to be switched. It leads to another unit 32 to be switched, such as a device.

【0019】圧縮空気が空気ばね2から排出される切換
え工程の間、自動車のレベルは、空気需要量に応じて僅
かに低下しかつレベル調整装置を介して再び充填され
る。
During the switching process in which the compressed air is discharged from the air spring 2, the level of the motor vehicle is reduced slightly in response to the air demand and is recharged via a level control.

【図面の簡単な説明】[Brief description of the drawings]

【図1】図1は、空気ばねを備えた自動車の横断面で示
す原理図である。
FIG. 1 is a principle diagram showing a cross section of an automobile provided with an air spring.

【符号の説明】[Explanation of symbols]

2 空気ばね 4 車体 6 車軸 8 空気供給集合体 10 電子制御装置 12 電磁弁 14 圧縮空気導管 16 信号導線 18 レベル調整装置 20 分岐管 22 電磁弁 24 電子制御装置 26 切換えられるべきユニット(例えば伝動装置) 28 圧縮空気導管 30 空気圧調整部材 32 切換えられるべきユニット(例えば中央インタ
ロック装置) 34 空気圧調整部材 36 電磁弁 38 分岐管 40 圧縮空気導管 42 電子制御装置
Reference Signs List 2 air spring 4 body 6 axle 8 air supply assembly 10 electronic control device 12 solenoid valve 14 compressed air conduit 16 signal conductor 18 level adjustment device 20 branch pipe 22 solenoid valve 24 electronic control device 26 unit to be switched (for example, transmission device) 28 Compressed air conduit 30 Air pressure adjusting member 32 Unit to be switched (for example, central interlock device) 34 Air pressure adjusting member 36 Solenoid valve 38 Branch pipe 40 Compressed air conduit 42 Electronic control unit

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 自動車における切換えられるべき補助集
合体(26及び又は32)の少なくとも1つの空気圧調
整部材への空気圧供給方法において、 レベル調整装置の圧力媒体源(8)を圧力媒体源として
使用することを特徴とする前記方法。
1. A method for supplying pneumatic pressure to at least one pneumatic pressure adjusting member of an auxiliary assembly (26 and / or 32) to be switched in a motor vehicle, wherein a pressure medium source (8) of a level control device is used as a pressure medium source. The method as described above.
【請求項2】 空気圧により切換えられるべき補助集合
体(26又は32)のための切換え媒体(圧縮空気)
が、既存のレベル調整装置、従って空気ばね(2)又は
その圧縮空気導管(14)から分岐して供給可能であ
る、請求項1 に記載の方法を実施するための装置。
2. Switching medium (compressed air) for an auxiliary assembly (26 or 32) to be switched pneumatically
2. An apparatus for implementing the method according to claim 1, wherein the air supply can be supplied by branching off from an existing leveling device, thus an air spring (2) or its compressed air conduit (14).
【請求項3】 空気圧により切換え可能な補助集合体
(26又は32)が、空気圧調整部材(30又は34)
を有し、その圧力媒体供給がレベル調整装置の調整によ
って直接制御可能である請求項1 又は2に記載の圧力媒
体供給装置。
3. A pneumatically switchable auxiliary assembly (26 or 32) is provided with an air pressure adjusting member (30 or 34).
3. The pressure medium supply device according to claim 1, wherein the pressure medium supply is directly controllable by adjustment of a level adjustment device.
【請求項4】 短時間にレベル調整装置から取り出し可
能な圧縮空気量が、制限可能であり、その際システム圧
力は、直接自動車重量に依存する請求項1から3までの
うちのいずれか一項記載の圧力媒体供給装置。
4. The method according to claim 1, wherein the amount of compressed air which can be removed from the level control device in a short time can be limited, the system pressure depending directly on the vehicle weight. The pressure medium supply device according to claim 1.
【請求項5】 空気圧力の調整部材(30又は34)
が、空気ばね(82)の最小圧力から最大圧力までの範
囲で調整可能である、請求項1から4までのうちのいず
れか一項記載の圧力媒体供給装置。
5. An air pressure adjusting member (30 or 34).
5. The pressure medium supply device according to claim 1, wherein the pressure medium is adjustable in a range from a minimum pressure to a maximum pressure of the air spring.
【請求項6】 空気圧により切換えられるべき補助集合
体(26又は32)が伝動装置(26)であり、伝動装
置(26)は、レベル調整装置の常に圧力下にある圧縮
空気導管(14)から又は直接空気ばね(2)から出発
して、圧縮空気導管(14)に配設されている分岐管
(20)及び電磁弁(22)を介して制御可能であり、
その際圧縮空気は、他の圧縮空気導管(28)を介して
伝動装置(26)の切換えのために空気圧調整部材(3
0)に導かれる、請求項1から5までのうちのいずれか
一項記載の圧力媒体供給装置。
6. The auxiliary assembly (26 or 32) to be switched pneumatically is a transmission (26), which is connected to the compressed air line (14) which is always under pressure of the leveling device. Or controllable directly from the air spring (2) via a branch pipe (20) and a solenoid valve (22) arranged in the compressed air conduit (14),
The compressed air is then supplied via another compressed air conduit (28) to the transmission (26) for switching the transmission (26).
6. Pressure-medium supply device according to claim 1, which leads to 0).
【請求項7】 空気圧により切換え可能な補助集合体
(26又は32)が、所属の構成部材、即ち空気圧調整
部材(34)と、電磁弁(36)と、分岐管(38)
と、圧縮空気導管(40)と、電子制御装置(42)と
を備えた中央インタロック装置である、請求項1から5
までのうちのいずれか一項記載の圧力媒体供給装置。
7. A pneumatically switchable auxiliary assembly (26 or 32) comprises associated components, namely a pneumatic pressure adjusting member (34), a solenoid valve (36) and a branch pipe (38).
And a central interlocking device with a compressed air conduit (40) and an electronic control unit (42).
The pressure medium supply device according to any one of claims 1 to 3.
【請求項8】 各1つの絞りが、調整部材(30、3
4)に通じる空気導管(28、40)に組込まれてい
る、請求項1から7までのうちのいずれか一項記載の圧
力媒体供給装置。
8. An adjusting member (30, 3
8. The pressure-medium supply device according to claim 1, wherein the pressure-medium supply device is integrated in an air conduit (28, 40) leading to 4).
JP6527299A 1998-03-16 1999-03-11 Method of and device for supplying pressure medium to air pressure regulating member of auxiliary aggregate to be switched in automobile Withdrawn JPH11348764A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998111305 DE19811305C2 (en) 1998-03-16 1998-03-16 Pressure medium supply for pneumatic actuators of auxiliary units to be switched in a motor vehicle
DE19811305:6 1998-03-16

Publications (1)

Publication Number Publication Date
JPH11348764A true JPH11348764A (en) 1999-12-21

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JP6527299A Withdrawn JPH11348764A (en) 1998-03-16 1999-03-11 Method of and device for supplying pressure medium to air pressure regulating member of auxiliary aggregate to be switched in automobile

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EP (1) EP0943470A2 (en)
JP (1) JPH11348764A (en)
DE (1) DE19811305C2 (en)

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Publication number Priority date Publication date Assignee Title
DE10016970C1 (en) * 2000-04-06 2001-07-26 Continental Ag Level regulating unit for vehicle has tire valve connection in compressed air line branching off from another line
DE10064395C2 (en) * 2000-12-21 2002-11-14 Continental Ag Level control system for a motor vehicle
EP1651489B1 (en) 2003-07-28 2007-07-18 WABCO GmbH Electronic compressed-air system
DE10357765A1 (en) 2003-07-28 2005-03-10 Wabco Gmbh & Co Ohg A method for refilling brake circuits after a heavy compressed air consumption and apparatus for carrying out the method
DE502004006425D1 (en) 2003-07-28 2008-04-17 Wabco Gmbh ELECTRONIC COMPRESSED AIR SYSTEM
DE502004005786D1 (en) 2003-07-28 2008-02-07 Wabco Gmbh METHOD AND DEVICE FOR DETECTING A DEFECT OR FAILURE OF A COMPRESSED AIR CONSUMER CIRCUIT IN AN ELECTRONIC COMPRESSED AIR SYSTEM FOR VEHICLES
US7877186B2 (en) 2003-07-28 2011-01-25 Wabco Gmbh Method and system for identifying a malfunctioning compressed air consumer circuit in a vehicle electronic compressed air system
DE502004008242D1 (en) * 2003-12-10 2008-11-20 Wabco Gmbh Method for refilling brake circuits after heavy compressed air consumption
CN113928072B (en) * 2021-11-23 2023-06-13 浙江迦南科技股份有限公司 AGV dolly operation slewing mechanism

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DE4308460A1 (en) * 1993-03-17 1994-09-22 Fendt Xaver Gmbh & Co Work vehicle with a hydropneumatic, level-controlled axle suspension

Also Published As

Publication number Publication date
DE19811305C2 (en) 2002-07-11
EP0943470A2 (en) 1999-09-22
DE19811305A1 (en) 1999-09-30

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